Fanning-mill.



D. A. MAANUM.

FANNING MILL. APPLICATION FILED FEB. 1. 1913.

1,144,368. Patented June 29, 1915.

3 SHEETS-SHEET I.

THE NORRIS PETERS CO.. FHOTC-LITHO.. WASHINGTON. D. c.

D. A. MAANUM. FANNLNG MILL.

, APPLICATION FILED FEB. 7. 1913. 1,144,;368. Patented June 29, 1915.

3 SHEETSS,HEET 2.

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DA.Maanum THE NORRIS PETERS 60.. PHOTU-LITHON WASHINGTON. D. C

- n. ALMAANUM.

FANNING MILL APPLICATION FILED FEB- 7. 1913.

Patented June29, 1915.

3 SHEETSL-SHEET a.

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D.A.Maanum.

v THE fiB'RRTs PETERS co.. Prioip un-m. WASHINGIUN, n. c

:onnnroK A. MAANUM, or BENSON, MINNESOTA.

IEANNING-MILL.

To all whom itmay concern:

Be it known that I, DEDRICK A. MAANUM, a citizen of the United States, residing. at Benson, in the county of Swift and State of Minnesota, have invented new and useful Improvements in F anning-Mills, of which the following is a specification.

This invention relates to fanning mills or grain cleaning devices and one of the principal objects of the invention is to provide a simple and eflicient device of this character whereby the chaff and foreign matter may be conveniently and expeditiously removed from the grain.

'A further object of the invention is the provision of means for so acting upon the grain that it will pass across a blast of air in a thin stream, whereby the air can act directly upon each part of the grain to separate the chaff and foreign material therefrom. i i

A still further object of the invention is the provision of means which causes the long grain, such as oats, to pass over the screen, while theshort grain, such as wheat and the like, is caused to pass through the screen.

Further objects of this invention will appear as the following specific description is read in connection with the accompanying drawings, which form a part of this application, and in which Figure 1 is a side elevation. Fig. 2 is a front elevation.- Fig. 3 is a top plan view with parts in section. Fig. 4 is a longitudinal sectional view. Fig. 5 is a rear elevation. Fig. 6 is a horizontal sectional view on the line 6-6 of Fig. 4.

. Referring more particularly to the drawings, the supporting frame'comprises four uprights 1 which are connected together by braces 2 and 3. Supported upon the uprights are suitable bearings 4 in which a shaft 5 is journaled carrying upon its outer end a combined sprocket and fly, wheel 6 which is supplied with a crank 7 for rotating the same. This sprocket wheel is connected by means of the sprocket chain 8 and the sprocket pinions 9 and 10 to blower shafts 11 and 12 journaled in bearings upon diagonal supporting rods 13 and carrying the fans 14 and 15, both of which operate in suitable casings 16, as shown. The function of these fans will be hereinafter described.

Mounted upon the uprights is a hopper 17 Specification of Letters Patent.

Application filed February 7, 1913.

Patented June 29, 1915. Serial No. 746,845.

having an opening 18 in its bottom which is controlled by a shaking valve 19 pivotally 22 carried upon the links 23 which are suspended from the short end 24 of a bell crank lever 25. This bell crank lever is operated by a lever 26 operating over a toothed segment 27 on the hopper. The shoe comprises bottom, top, and side members, indicated at 28, 29 and 30, respectively. By operating the lever 26, the rear end of the valve 19 may be raised or lowered to control the amount of discharge from the hopper.

The valve plate 19 delivers the grain from the hopper to a pocket 31 carried by the shoe and having an opening 32 in its side, through which the chaff is adapted to pass. This pocket is substantially V-shaped in cross section and is provided with a plurality of separated slots which retard the passage of the grain through the pocket so that prior to its discharge through the slots it will be acted upon by the vibration of the shoe and willthereby be spread out. This spreading of the grain gives the blast from the fan 15 a chance to act upon each particle of the grain, the heavier portions of which pass through the slots and the lighter portions of which pass over the upper, forward end of the pocket and drop upon the platform 37. Immediately below the pocket, there is supported within the shoe, a screen frame 35which carries a screen fabric 36 covered by an imperforate platform 37, over which the chaff passes. Immediately below the screen fabric 36, there is located a platform 38 over which the grain passes after passing through the fabric 36 and drops upon a second platform 39 which forms a part of a screen frame 40. This screen frame carries a screen fabric 41 through which the grain passes to a platform 42, from whence it drops on to a platform 43 forming a part of a screen frame 44 which carries a screen fabric 45. EX- tending longitudinally of the frames 40 and 44 are dividing bars or ribs 46 which have pivoted thereto the guard plates 47 over whichthe chaff passes from the plate 37. Extendingacross the guard plates are shafts 47? which are secured inside of the shoe and have the guard plates 47 pivotally connected thereto by means of the bearing members 17*. The guards -17 have their rear ends upturned, as shown at -19, so as to insure the grain, wild oats, and other foreign material which has not been driven off by the blast of the fan 14, passing beneath the guard plates on to the screen fab.- rics 4-1 and 15. In order that none of the chaff which as been removed from the grain by the fan 14 can get beneath the guard plates, the frames 35 and 10 have extension plates 50 and 51 which overhang the upturned ends 49 and prevent the chaff from dropping on to the platforms 39 43. The grain in passing beneath the guard plates a7 will pass through the screen, while the wild oats carried along with the grain, being longer than the wheat, will pass over the screens 11 and 15 and be discharged with the chaff through the discharge opening 5 Immediately below the screen 45, there is arranged an inclined plate 53 adapted to deliver the grain to an oppositely inclined plate 54: which discharges into a pocket 55 where the grain is acted upon by the blast of air from the fan 15 through the discharge spout 56. The pocket 55 is also provided with slots or ribs 57 which act on the grain in a manner similar to the, slots 33. This pocket delivers the grain on to the final screen fabric 58v which is carried by the frame 59.

The shoe 21 has its rear end pivotally hung upon the links 60 carried by the top piece 3, while the forward end is supported.

uponv rods 61 connected to a shaft 62 which is reciprocated in a rotary direction by an arm 63, whose rear end is connected by a link 6 1 to an eccentric pin 65 and the shaft 12. The lower ends of the bars 61 support the forward end of the screen frame 59, while the rear end of said frame is pivotally suspended upon links 66. These sieve frames and their associated parts, such as 40,. 14, etc., are all held removably in the shoe so that they can be removed and re placed by screens having larger or smaller meshes, wherebygrainof different sizes may be readily acted upon.

What is claimed is 1. In combination, a frame, a hopper supported thereon, a shoe reciprocally mounted;

in the frame, a screen gang therein, a valve member carried by and movable with the shoe for regulating the discharge of grain from the hopper and means for receiving the. grain from the valve and spreading the same.

2. In combination, a frame, a hopper supported thereon, a shoe reciprocally mounted inthe frame, a screen gang therein, a valve member carried by and movable with the shoe for regulating the discharge of grain from the hopper, means regulating the position of the valve relative to the hopper and means for receiving the grain from the valve and spreading the same.

3. In combination, a frame, a hopper supported thereon, a. shoe reciprocally mounted in the frame, a screen gang therein, a valve member carried by and movable with the' shoe for regulating the discharge of grain from the hopper, means carried by the hopper for regulating the position of the valve with relation to the hopper, and means for receiving the grain from the valve and spreading the same. 7

4C. In combination, aframe, a hopper supported thereon, a shoe reciprocally mounted in the frame, a screen gang therein, avalve member pivoted to the shoe and movable therewith for regulating the discharge from the hopper, said valve adapted to conduct the material from the hopper to the screen gang, means for regulating the position of the valve with relation to the hopper and means for receiving the grain from the valve and spreading the same.

5. In combination, a frame, a hopper supported thereon, a shoe reciprocally mounted ing a screen gang, a valve carried by the shoe and adapted to regulate the discharge from the hopper to the screen gang, a pocket carried by the shoe intermediate the valve and thescreen gang, a blower adapted to direct the blast of air intosaid pocket, and means arranged in the pocket for spreading the grain,iwhereby the blast of air will act upon the same when in a thin stream.

7'. In a fanning mill, a frame, a shoe reciprocally mounted thereon, *a screen gang arranged therein, a hopper carried by the frame, means carried by the shoe for regulating the discharge of grain'from the hopper and for delivering the grain therefrom to the, shoe, a pocket interposed between'said means and the screen gang, a screen, a

blower adapted to direct the blast of air to said pocket, and means arranged in the pocket for spreading the grain whereby the air from the blower will act upon the grain in a thin stream.

In testimony whereof I affix my signature in presence of tWo witnesses.

. DEDRICK A. MAANUM.

Witnesses:

LEO MCDERMOFIIT, CARL FUGUM.

O'opies 01' this patent may be obtained. for five cents each, by addressing the c mm ss oner of latelti.

Washington, D. 0. 

